How to Use Fonte: Examples, Pinouts, and Specs

The Fonte (Manufacturer Part ID: 5V 2A) is a compact and reliable power supply unit designed to provide a stable 5V DC output with a maximum current of 2A. Manufactured in China, this component is ideal for powering low-voltage electronic circuits and devices. It efficiently converts AC mains power to a regulated DC output, ensuring consistent performance and protection for sensitive electronics.

• Powering microcontrollers (e.g., Arduino, Raspberry Pi)
• Supplying power to sensors, modules, and small motors
• Charging low-power USB devices
• General-purpose DC power supply for prototyping and testing circuits

The following table outlines the key technical details of the Fonte 5V 2A power supply unit:

The Fonte 5V 2A typically has two input and two output connections. The pin configuration is as follows:

1. Connect the AC Input:

   • Ensure the power supply is disconnected from the mains before wiring.
   • Connect the live (L) and neutral (N) wires of the AC mains to the corresponding input pins of the Fonte.

2. Connect the DC Output:

   • Use the +5V pin to supply power to your circuit's positive rail.
   • Connect the GND pin to the ground rail of your circuit.

3. Verify Connections:

   • Double-check all connections to ensure proper polarity and secure wiring.
   • Avoid short circuits between the output pins.

4. Power On:

   • Plug the Fonte into the AC mains and switch it on.
   • Measure the output voltage with a multimeter to confirm it is 5V before connecting sensitive components.

• Load Requirements: Ensure the total current draw of your circuit does not exceed 2A to prevent overheating or damage.
• Ventilation: Place the Fonte in a well-ventilated area to avoid overheating during operation.
• Polarity: Always observe correct polarity when connecting the DC output to your circuit.
• Isolation: Avoid direct contact with the AC input terminals to prevent electric shock.

The Fonte 5V 2A can be used to power an Arduino UNO via its 5V pin. Below is an example of how to connect and use it:

1. Connect the +5V output of the Fonte to the 5V pin of the Arduino UNO.
2. Connect the GND output of the Fonte to the GND pin of the Arduino UNO.
3. Upload the following code to the Arduino UNO to blink an LED:

// Simple LED Blink Example
// This code blinks an LED connected to pin 13 of the Arduino UNO.

void setup() {
  pinMode(13, OUTPUT); // Set pin 13 as an output
}

void loop() {
  digitalWrite(13, HIGH); // Turn the LED on
  delay(1000);            // Wait for 1 second
  digitalWrite(13, LOW);  // Turn the LED off
  delay(1000);            // Wait for 1 second
}

1. No Output Voltage:

   • Cause: Loose or incorrect wiring.
   • Solution: Verify all connections and ensure the AC input is properly connected.

2. Output Voltage Too Low or Unstable:

   • Cause: Overloading the power supply or poor ventilation.
   • Solution: Reduce the load to within the 2A limit and ensure proper airflow around the unit.

3. Overheating:

   • Cause: Prolonged operation at maximum load or insufficient ventilation.
   • Solution: Operate the Fonte below its maximum current rating and place it in a well-ventilated area.

4. Short Circuit Protection Triggered:

   • Cause: Output pins are shorted.
   • Solution: Disconnect the power supply, fix the short circuit, and reconnect.

Q: Can the Fonte 5V 2A power multiple devices simultaneously?
A: Yes, as long as the total current draw does not exceed 2A.

Q: Is the Fonte suitable for outdoor use?
A: No, the Fonte is not weatherproof and should only be used in dry, indoor environments.

Q: Can I use the Fonte to charge a USB device?
A: Yes, you can use the Fonte with a USB breakout board to charge devices that require 5V DC.

Q: What happens if I exceed the 2A current limit?
A: The Fonte's overcurrent protection will activate, shutting down the output to prevent damage. Reduce the load and restart the power supply.